20473205

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{571}}^1$

素因数の和:748

約数の個数: 16

約数和(自身を含む): 25204608

約数和(自身を除く): 4731403

約数列:

[1, 5, 71, 101, 355, 505, 571, 2855, 7171, 35855, 40541, 57671, 202705, 288355, 4094641, 20473205]

約数ペア:

[(1, 20473205), (5, 4094641), (71, 288355), (101, 202705), (355, 57671), (505, 40541), (571, 35855), (2855, 7171)]